/* ============================================================
   carino-branding.css — the Carino design system stylesheet.
   Source of truth, hosted at https://branding.carino.systems/
   Link it to inherit the tokens + every component style:
     <link rel="stylesheet" href="https://branding.carino.systems/carino-branding.css">
   ============================================================ */
    /* ============================================================
       Carino Branding — the canonical design tokens & components.
       This file IS the reference: view-source, or use the per-section
       Copy buttons to lift a snippet into another project.
       Hosted at branding.carino.systems. Tokens mirror
       Carino-Systems/index.html :root.
       ============================================================ */
    :root {
      --bg:            #050505;   /* near-black page background        */
      --bg-elev:       #0d0d0d;   /* elevated surface (inputs, code)   */
      --bg-card:       #0b0b0b;   /* card / panel background           */
      --accent:        #eab308;   /* Sharp Gold — the one accent       */
      --accent-faint:  rgba(234,179,8,0.05);
      --accent-glow:   rgba(234,179,8,0.15);
      --accent-dim:    rgba(234,179,8,0.30);
      --border:        #262626;   /* hairline borders                  */
      --border-hv:     #eab308;   /* border on hover/focus             */
      --text:          #ffffff;   /* primary text                      */
      --text-sec:      #a3a3a3;   /* secondary text                    */
      --text-muted:    #666666;   /* muted / labels                    */
      --ok:            #22c55e;
      --warn:          #eab308;
      --err:           #ef4444;
      --stage-grad:    radial-gradient(1200px 520px at 50% -12%, rgba(234,179,8,0.08) 0%, transparent 60%), linear-gradient(180deg,#0b0b0b 0%,#050505 100%);
      --gold-text:     linear-gradient(130deg,#fef08a 0%,#eab308 50%,#b45309 100%);
      --sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
      --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
      --display: 'Red Hat Display', var(--sans);
      --radius: 10px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 80px; }
    body {
      margin: 0; background: var(--bg); color: var(--text);
      font-family: var(--sans); font-size: 15px; line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--accent); }
    code, .mono { font-family: var(--mono); }

    /* ---- page shell ---- */
    main { max-width: 1080px; margin: 0 auto; padding: 0 24px 120px; }

    .guide-hero {
      background: var(--stage-grad);
      border-bottom: 1px solid var(--border);
      padding: 64px 24px 56px; text-align: center; margin-bottom: 8px;
    }
    .guide-hero .kicker {
      font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.35em;
      text-transform: uppercase; color: var(--accent); margin-bottom: 18px;
    }
    .guide-hero h1 {
      font-family: var(--display); font-weight: 900; font-size: clamp(2.6rem, 7vw, 4.6rem);
      line-height: 0.95; margin: 0; text-transform: uppercase; letter-spacing: 1px;
      background: var(--gold-text); -webkit-background-clip: text; background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .guide-hero p {
      max-width: 640px; margin: 20px auto 0; color: var(--text-sec);
      font-family: var(--mono); font-size: 0.85rem; line-height: 1.7;
    }

    /* ---- section table of contents ---- */
    .toc {
      position: sticky; top: 0; z-index: 50;
      display: flex; flex-wrap: wrap; gap: 6px; justify-content: center;
      padding: 14px 12px; margin: 0 -24px 48px;
      background: rgba(5,5,5,0.86); backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
    }
    .toc a {
      font-family: var(--mono); font-size: 0.62rem; text-transform: uppercase;
      letter-spacing: 0.08em; color: var(--text-sec); text-decoration: none;
      border: 1px solid var(--border); border-radius: 4px; padding: 5px 9px; transition: 0.15s;
    }
    .toc a:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-faint); }

    /* ---- spec section ---- */
    .spec { padding: 30px 0; border-top: 1px solid var(--border); }
    .spec:first-of-type { border-top: none; }
    .spec-head { margin-bottom: 24px; }
    .spec-num {
      font-family: var(--mono); font-size: 0.7rem; color: var(--accent);
      letter-spacing: 0.2em;
    }
    .spec-head h2 {
      font-family: var(--display); font-weight: 900; font-size: 1.9rem;
      text-transform: uppercase; letter-spacing: 0.5px; margin: 4px 0 6px;
    }
    .spec-head p { color: var(--text-sec); margin: 0; max-width: 620px; font-size: 0.9rem; }
    .spec-head.has-copy { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
    .spec-head-text { min-width: 0; }
    .copy-btn {
      flex-shrink: 0; display: inline-flex; align-items: center; gap: 6px;
      font-family: var(--mono); font-size: 0.62rem; font-weight: 700;
      text-transform: uppercase; letter-spacing: 0.08em;
      padding: 7px 11px; border-radius: 6px; cursor: pointer; white-space: nowrap;
      border: 1px solid var(--border); background: transparent; color: var(--text-sec); transition: 0.18s;
    }
    .copy-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-faint); }
    .copy-btn.done { border-color: var(--ok); color: var(--ok); background: rgba(34,197,94,0.08); }
    .copy-btn svg { width: 13px; height: 13px; }

    .demo {
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: var(--radius); padding: 24px; margin-bottom: 14px;
    }
    .demo-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
    .demo-label {
      font-family: var(--mono); font-size: 0.62rem; text-transform: uppercase;
      letter-spacing: 0.12em; color: var(--text-muted); margin-bottom: 12px;
    }
    .demo + .demo-label { margin-top: 6px; }

    /* ============ 1. color swatches ============ */
    .swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px,1fr)); gap: 12px; }
    .swatch { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; cursor: pointer; transition: 0.15s; }
    .swatch:hover { border-color: var(--accent); transform: translateY(-2px); }
    .swatch .chip { height: 64px; }
    .swatch .meta { padding: 8px 10px; }
    .swatch .name { font-size: 0.72rem; font-weight: 600; }
    .swatch .val { font-family: var(--mono); font-size: 0.64rem; color: var(--text-muted); }

    /* ============ 2. typography ============ */
    .type-sample { border-bottom: 1px dashed var(--border); padding: 14px 0; display: flex; align-items: baseline; gap: 20px; }
    .type-sample:last-child { border-bottom: none; }
    .type-sample .tag { font-family: var(--mono); font-size: 0.6rem; color: var(--text-muted); width: 130px; flex-shrink: 0; text-transform: uppercase; letter-spacing: 0.08em; }
    .t-display { font-family: var(--display); font-weight: 900; font-size: 2.4rem; text-transform: uppercase; line-height: 1; }
    .t-h2 { font-family: var(--display); font-weight: 900; font-size: 1.5rem; text-transform: uppercase; }
    .t-body { font-family: var(--sans); font-size: 1rem; color: var(--text); }
    .t-sec { font-family: var(--sans); font-size: 0.9rem; color: var(--text-sec); }
    .t-mono { font-family: var(--mono); font-size: 0.85rem; color: var(--text); }
    .t-label { font-family: var(--mono); font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--text-muted); }
    .wordmark { font-family: var(--display); font-weight: 900; font-size: 2.4rem; background: var(--gold-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

    /* ============ 3. buttons ============ */
    .btn {
      display: inline-flex; align-items: center; gap: 8px;
      font-family: var(--mono); font-size: 0.7rem; font-weight: 700;
      text-transform: uppercase; letter-spacing: 0.06em;
      padding: 0 16px; height: 38px; border-radius: 6px; cursor: pointer;
      border: 1px solid var(--border); background: transparent; color: var(--text-sec);
      transition: 0.18s; text-decoration: none;
    }
    .btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-faint); }
    .btn-primary { background: var(--accent); border-color: var(--accent); color: #050505; }
    .btn-primary:hover { background: #fbbf24; color: #050505; box-shadow: 0 4px 16px var(--accent-glow); }
    .btn-ghost { border-color: transparent; }
    .btn-ghost:hover { border-color: var(--border); background: transparent; color: var(--text); }
    .btn:disabled, .btn.disabled { opacity: 0.35; pointer-events: none; }
    .icon-btn-demo {
      width: 38px; height: 38px; border: 1px solid var(--border); border-radius: 6px;
      display: inline-flex; align-items: center; justify-content: center;
      color: var(--text-muted); background: transparent; cursor: pointer; transition: 0.18s;
    }
    .icon-btn-demo:hover { border-color: var(--accent); color: #050505; background: var(--accent); transform: translateY(-2px); box-shadow: 0 4px 12px var(--accent-glow); }
    .icon-btn-demo svg { width: 16px; height: 16px; }

    /* toggle / segmented buttons (module & template style) */
    .toggle-btn {
      font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em;
      padding: 8px 14px; border-radius: 4px; cursor: pointer; transition: 0.18s;
      border: 1px solid var(--border); background: transparent; color: var(--text-sec);
    }
    .toggle-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-faint); }
    .toggle-btn.active { background: var(--accent); border-color: var(--accent); color: #050505; font-weight: 700; }

    /* ============ 4. tabs ============ */
    .tabbar { display: flex; gap: 4px; border-bottom: 1px solid var(--border); }
    .tabbtn {
      font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em;
      padding: 10px 16px; cursor: pointer; color: var(--text-sec); background: transparent;
      border: none; border-bottom: 2px solid transparent; margin-bottom: -1px; transition: 0.15s;
    }
    .tabbtn:hover { color: var(--text); }
    .tabbtn.active { color: var(--accent); border-bottom-color: var(--accent); }
    .tabpane { padding: 18px 2px 2px; color: var(--text-sec); font-size: 0.9rem; }

    /* ============ 5. forms ============ */
    .field { display: flex; flex-direction: column; gap: 6px; min-width: 220px; }
    .field label { font-family: var(--mono); font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }
    .input, .select, .textarea {
      background: var(--bg-elev); border: 1px solid var(--border); border-radius: 6px;
      color: var(--text); font-family: var(--mono); font-size: 0.8rem;
      padding: 9px 11px; width: 100%; transition: 0.15s;
    }
    .input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-faint); }
    .textarea { resize: vertical; min-height: 84px; line-height: 1.5; }
    .select option { background: #111; }
    .check { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; color: var(--text-sec); cursor: pointer; }
    .check input { accent-color: var(--accent); width: 15px; height: 15px; }
    /* switch */
    .switch { position: relative; width: 42px; height: 22px; flex-shrink: 0; }
    .switch input { opacity: 0; width: 0; height: 0; }
    .switch .track { position: absolute; inset: 0; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 999px; transition: 0.2s; }
    .switch .track::before { content: ""; position: absolute; width: 16px; height: 16px; left: 2px; top: 2px; background: var(--text-muted); border-radius: 50%; transition: 0.2s; }
    .switch input:checked + .track { background: var(--accent-faint); border-color: var(--accent); }
    .switch input:checked + .track::before { transform: translateX(20px); background: var(--accent); }

    /* ============ 6. alerts ============ */
    .alert { border: 1px solid; border-radius: 8px; padding: 12px 14px; font-family: var(--mono); font-size: 0.78rem; line-height: 1.5; margin-bottom: 10px; }
    .alert:last-child { margin-bottom: 0; }
    .alert.ok   { color: #86efac; background: rgba(34,197,94,0.08);  border-color: rgba(34,197,94,0.5); }
    .alert.warn { color: #fcd34d; background: rgba(234,179,8,0.08);  border-color: rgba(234,179,8,0.45); }
    .alert.err  { color: #fca5a5; background: rgba(239,68,68,0.08);  border-color: rgba(239,68,68,0.5); }
    .alert code { background: #1a1a1a; padding: 1px 5px; border-radius: 3px; color: #fde68a; }
    .alert b { color: #fde68a; }

    /* ============ 7. badges & chips ============ */
    .chip-tag { font-family: var(--mono); font-size: 0.6rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); border: 1px solid var(--border); border-radius: 4px; padding: 3px 6px; }
    .chip-tz { font-family: var(--mono); font-size: 0.58rem; font-weight: 700; color: #050505; background: var(--accent); padding: 2px 5px; border-radius: 3px; }
    .pill { font-family: var(--mono); font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.05em; border-radius: 999px; padding: 3px 10px; border: 1px solid; }
    .pill.ok  { color: var(--ok);  border-color: rgba(34,197,94,0.4);  background: rgba(34,197,94,0.08); }
    .pill.warn{ color: var(--warn);border-color: rgba(234,179,8,0.4);  background: rgba(234,179,8,0.08); }
    .pill.err { color: var(--err); border-color: rgba(239,68,68,0.4);  background: rgba(239,68,68,0.08); }
    .dot { display: inline-flex; align-items: center; gap: 7px; font-family: var(--mono); font-size: 0.68rem; color: var(--text-sec); }
    .dot::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }
    .dot.live::before { animation: pulse 1.6s infinite; }
    @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

    /* ============ 8. cards ============ */
    .card {
      display: flex; flex-direction: column; background: var(--bg-card);
      border: 1px solid var(--border); padding: 22px; border-radius: 12px; transition: 0.22s;
    }
    .card:hover { border-color: var(--accent); background: linear-gradient(145deg,#17120a 0%,#0b0b0b 100%); transform: translateY(-4px); box-shadow: 0 14px 28px rgba(0,0,0,0.6), 0 0 22px var(--accent-glow); }
    .c-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
    .c-desc { font-size: 0.85rem; color: var(--text-sec); line-height: 1.6; flex: 1; }
    .c-link { margin-top: 16px; font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; color: var(--accent); }
    .card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 14px; }
    .panel-header { display: flex; justify-content: space-between; align-items: flex-end; border-bottom: 1px solid var(--border); padding-bottom: 14px; }
    .panel-title { font-family: var(--display); font-weight: 900; font-size: 2rem; text-transform: uppercase; letter-spacing: 1px; }
    .panel-desc { font-family: var(--mono); font-size: 0.8rem; color: var(--text-sec); margin-top: 6px; }
    .panel-num { font-family: var(--display); font-weight: 900; font-size: 3.2rem; line-height: 0.8; color: rgba(234,179,8,0.12); user-select: none; }

    /* ============ 9. dropdown / diagnostics ============ */
    .diag-wrap { position: relative; display: inline-block; }
    .diag-toggle {
      display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
      background: transparent; border: 1px solid var(--border); color: var(--text-sec);
      font-family: var(--mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.05em;
      padding: 8px 12px; border-radius: 6px; transition: 0.18s;
    }
    .diag-toggle:hover, .diag-toggle.open { border-color: var(--accent); color: var(--accent); background: var(--accent-faint); }
    .diag-dropdown {
      position: absolute; top: calc(100% + 8px); right: 0; width: 260px;
      background: var(--bg-card); border: 1px solid var(--accent-dim); border-radius: 8px;
      padding: 14px; box-shadow: 0 18px 40px rgba(0,0,0,0.7); display: none; z-index: 20;
    }
    .diag-dropdown.open { display: block; }
    .diag-section { font-family: var(--mono); font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); opacity: 0.6; border-bottom: 1px solid var(--border); padding-bottom: 3px; margin: 4px 0 8px; }
    .diag-row { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 0.72rem; margin-bottom: 7px; }
    .diag-lbl { color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
    .diag-val { color: var(--text); }

    /* ============ 10. table ============ */
    table.data { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 0.76rem; }
    table.data th { text-align: left; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.62rem; font-weight: 700; padding: 8px 12px; border-bottom: 1px solid var(--border); }
    table.data td { padding: 9px 12px; border-bottom: 1px solid var(--border); color: var(--text-sec); }
    table.data tr:hover td { background: var(--accent-faint); color: var(--text); }

    /* ============ 11. code ============ */
    pre.code { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 8px; padding: 16px; overflow-x: auto; font-family: var(--mono); font-size: 0.78rem; line-height: 1.6; color: #e0e0e0; margin: 0; }
    pre.code .k { color: var(--accent); }
    pre.code .c { color: var(--text-muted); }

    /* ============ 12. loading ============ */
    .spinner { width: 26px; height: 26px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
    @keyframes spin { to { transform: rotate(360deg); } }
    .progress { width: 260px; height: 6px; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
    .progress > span { display: block; height: 100%; width: 62%; background: var(--accent); border-radius: 999px; box-shadow: 0 0 10px var(--accent-glow); }
    .ekg { width: 180px; height: 44px; }
    .ekg .trace { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; filter: drop-shadow(0 0 4px var(--accent-glow)); stroke-dasharray: 320; stroke-dashoffset: 320; animation: ekg 1.8s linear infinite; }
    @keyframes ekg { to { stroke-dashoffset: -320; } }

    /* ============ 13. slice menu (scaled reference) ============ */
    .slice-demo { display: flex; height: 200px; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
    .slice { flex: 1; position: relative; border-right: 1px solid var(--border); display: flex; flex-direction: column; justify-content: flex-end; padding: 16px; cursor: pointer; transition: 0.25s; background: #060606; }
    .slice:last-child { border-right: none; }
    .slice::before { content: ""; position: absolute; inset: 0; background: radial-gradient(400px 180px at 50% 120%, var(--accent-glow) 0%, transparent 70%); opacity: 0; transition: 0.25s; }
    .slice:hover { flex: 1.6; background: #0a0a0a; }
    .slice:hover::before { opacity: 1; }
    .slice .s-num { font-family: var(--display); font-weight: 900; font-size: 1.8rem; color: rgba(234,179,8,0.2); }
    .slice .s-text { font-family: var(--display); font-weight: 900; text-transform: uppercase; font-size: 0.95rem; letter-spacing: 0.5px; }

    .note { font-family: var(--mono); font-size: 0.7rem; color: var(--text-muted); margin-top: 10px; line-height: 1.6; }
    .footer { text-align: center; padding: 48px 24px; border-top: 1px solid var(--border); color: var(--text-muted); font-family: var(--mono); font-size: 0.7rem; }